/* =========================================================
   HIPOLEM Bâtiment - Feuille de styles principale
   Auteur : design HIPOLEM
   Organisation :
     1. Variables & reset
     2. Typographie & utilitaires
     3. Boutons
     4. Bandeau (topbar) & header / nav
     5. Hero
     6. Sections génériques
     7. Cartes (specialties, why, reviews)
     8. Showcase salle de bains + galerie
     9. Climatisation / Chauffage
    10. Méthode (timeline)
    11. Galerie réalisations
    12. Avis clients
    13. Contact + formulaire
    14. Footer
    15. Bouton flottant
    16. Animations & helpers
    17. Responsive
   ========================================================= */

/* ---------- 1. VARIABLES ---------- */
:root {
  /* Couleurs marque (paramétrables par client via config.json) */
  --c-red:        #d4202a;        /* couleur principale CTA */
  --c-red-dark:   #a8161e;
  --c-blue:       #1873bf;      /* accent secondaire */
  --c-blue-dark:  #115b96;
  --c-green:      #2e8a55;       /* accent tertiaire */
  --c-green-dark: #226c43;
  --c-dark:       #1a1a1a;           /* anthracite / titres */
  --c-dark-2:     #262626;
  --c-grey-900:   #2a2a2a;
  --c-grey-700:   #4a4a4a;
  --c-grey-500:   #7a7a7a;
  --c-grey-300:   #d6d6d6;
  --c-grey-200:   #e9ecef;
  --c-grey-100:   #f4f6f8;
  --c-white:      #ffffff;

  /* Typographie */
  --ff-head: 'Montserrat', 'Segoe UI', Arial, sans-serif;
  --ff-body: 'Inter', 'Segoe UI', Arial, sans-serif;

  /* Espacements & radius */
  --radius-sm: 8px;
  --radius:    14px;
  --radius-lg: 22px;

  --shadow-sm: 0 2px 8px rgba(20, 20, 20, .06);
  --shadow:    0 10px 30px rgba(20, 20, 20, .08);
  --shadow-lg: 0 20px 60px rgba(20, 20, 20, .14);

  --container: 1200px;

  --header-h: 86px;
  --topbar-h: 36px;
}

/* ---------- 2. RESET / BASE ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--ff-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--c-grey-900);
  background: var(--c-white);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

button { font-family: inherit; cursor: pointer; }

ul { padding: 0; margin: 0; list-style: none; }

h1, h2, h3, h4 {
  font-family: var(--ff-head);
  color: var(--c-dark);
  margin: 0 0 .4em;
  line-height: 1.2;
  font-weight: 800;
}

p { margin: 0 0 1em; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* Couleurs utilitaires */
.text-red   { color: var(--c-red); }
.text-blue  { color: var(--c-blue); }
.text-green { color: var(--c-green); }
.text-light { color: rgba(255,255,255,.85) !important; }

/* Focus accessibilité */
:where(a, button, input, select, textarea):focus-visible {
  outline: 3px solid rgba(24, 115, 191, .35);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- 3. BOUTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--ff-head);
  font-weight: 700;
  font-size: .95rem;
  letter-spacing: .2px;
  padding: 14px 24px;
  border-radius: 999px;
  border: 0;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .2s ease, background-color .2s ease, color .2s ease;
  white-space: nowrap;
  text-decoration: none;
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.btn:active { transform: translateY(0); }
.btn--sm    { padding: 10px 18px; font-size: .88rem; }
.btn--block { width: 100%; }

.btn--primary { background: var(--c-red);  color: #fff; }
.btn--primary:hover { background: var(--c-red-dark); }

.btn--blue { background: var(--c-blue); color: #fff; }
.btn--blue:hover { background: var(--c-blue-dark); }

.btn--green { background: var(--c-green); color: #fff; }
.btn--green:hover { background: var(--c-green-dark); }

.btn--dark { background: var(--c-dark); color: #fff; }
.btn--dark:hover { background: #000; }

.btn--ghost {
  background: transparent;
  color: var(--c-dark);
  border: 1.5px solid var(--c-grey-300);
}
.btn--ghost:hover { background: var(--c-grey-100); border-color: var(--c-grey-500); }

/* ---------- 4. TOPBAR + HEADER ---------- */
.topbar {
  background: var(--c-dark);
  color: #d8d8d8;
  font-size: .82rem;
  height: var(--topbar-h);
  display: flex; align-items: center;
}
.topbar__inner {
  display: flex; align-items: center;
  gap: 22px;
  flex-wrap: wrap;
}
.topbar__item { display: inline-flex; align-items: center; gap: 6px; }
.topbar__item--right { margin-left: auto; }
.topbar .dot {
  display: inline-block; width: 8px; height: 8px;
  background: #2ecc71; border-radius: 50%;
  margin-right: 6px; box-shadow: 0 0 0 4px rgba(46,204,113,.18);
}
.topbar__item--hide-sm { display: inline-flex; }

.header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--c-grey-200);
  transition: box-shadow .25s ease, background-color .25s ease;
}
.header.is-scrolled { box-shadow: var(--shadow-sm); background: #fff; }

.header__inner {
  height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
}

.header__logo { display: inline-flex; align-items: center; }
.header__logo img {
  height: 64px;
  width: auto;
  display: block;
  /* Le logo officiel inclut le slogan & les visuels de prestations,
     un léger drop-shadow le détache joliment du fond clair */
  filter: drop-shadow(0 1px 1px rgba(0,0,0,.05));
}

.header__burger {
  display: none;
  width: 42px; height: 42px;
  border-radius: 10px;
  border: 1px solid var(--c-grey-300);
  background: #fff;
  flex-direction: column; justify-content: center; align-items: center;
  gap: 5px;
  padding: 0;
}
.header__burger span {
  width: 20px; height: 2px; background: var(--c-dark);
  border-radius: 2px; transition: transform .25s ease, opacity .25s ease;
}
.header__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.header__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.header__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav { display: flex; align-items: center; gap: 22px; }
.nav__list {
  display: flex; align-items: center; gap: 4px;
}
.nav__list a {
  display: inline-block;
  padding: 10px 14px;
  font-weight: 600;
  font-size: .95rem;
  color: var(--c-grey-900);
  border-radius: 8px;
  transition: color .2s ease, background-color .2s ease;
}
.nav__list a:hover { color: var(--c-red); background: var(--c-grey-100); }
.nav__cta { margin-left: 6px; }

/* ---------- 5. HERO (bannière marque + zone CTA) ---------- */
.hero {
  position: relative;
  padding: 0 0 72px;
  background:
    radial-gradient(1200px 600px at -10% 30%, rgba(46,138,85,.06), transparent 60%),
    radial-gradient(900px 500px at 110% 60%, rgba(24,115,191,.06), transparent 60%),
    linear-gradient(180deg, #ffffff 0%, #fbfbfc 100%);
  overflow: hidden;
}

/* Bannière pleine largeur sous le header */
.hero__banner {
  width: 100%;
  background: #1a1a1a;        /* matche le fond sombre de la bannière, évite le flash blanc */
  display: flex;
  justify-content: center;
  margin-bottom: 56px;
  overflow: hidden;
}
.hero__banner picture {
  display: block;
  width: 100%;
  max-width: 2292px;          /* taille native de l'image desktop, pas de sur-agrandissement */
  margin: 0 auto;
}
.hero__banner img {
  display: block;
  width: 100%;
  height: auto;               /* garde le ratio natif, jamais de rognage */
}

/* Zone de conversion sous la bannière */
.hero__cta-zone {
  text-align: center;
  max-width: 860px;
  padding-top: 8px;
}
.hero__title {
  font-size: clamp(1.9rem, 4vw, 3rem);
  letter-spacing: -.5px;
  margin-bottom: 16px;
}
.hero__subtitle {
  font-size: 1.1rem;
  color: var(--c-grey-700);
  margin: 0 auto 28px;
  max-width: 640px;
}
.hero__buttons {
  display: flex; flex-wrap: wrap; gap: 14px;
  justify-content: center;
}

/* ---------- 6. SECTIONS GÉNÉRIQUES ---------- */
.section { padding: 84px 0; }
.section--alt { background: var(--c-grey-100); }

.section__header {
  max-width: 760px;
  margin: 0 auto 48px;
  text-align: center;
}
.section__eyebrow {
  display: inline-block;
  font-family: var(--ff-head);
  font-size: .78rem; font-weight: 700;
  letter-spacing: 2.5px; text-transform: uppercase;
  color: var(--c-grey-700);
  margin-bottom: 12px;
}
.section__title {
  font-size: clamp(1.7rem, 3.2vw, 2.4rem);
  letter-spacing: -.4px;
}
.section__title--light { color: #fff; }
.section__lead {
  color: var(--c-grey-700);
  font-size: 1.05rem;
  margin-top: 8px;
}
.section__lead--light { color: rgba(255,255,255,.82); }

/* ---------- 7. CARTES ---------- */
.cards {
  display: grid;
  gap: 22px;
}
.cards--3 { grid-template-columns: repeat(3, 1fr); }
.cards--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff;
  border: 1px solid var(--c-grey-200);
  border-radius: var(--radius);
  padding: 28px 24px;
  display: flex; flex-direction: column; gap: 10px;
  transition: transform .2s ease, box-shadow .25s ease, border-color .25s ease;
  position: relative;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: transparent;
}

.card__icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: 6px;
  background: var(--c-grey-100);
  color: var(--c-dark);
}
.card__icon--green { background: rgba(46,138,85,.12); color: var(--c-green); }
.card__icon--blue  { background: rgba(24,115,191,.12); color: var(--c-blue); }
.card__icon--red   { background: rgba(212,32,42,.12);  color: var(--c-red); }
.card__icon--dark  { background: rgba(26,26,26,.08);   color: var(--c-dark); }

.card__title { font-size: 1.18rem; }
.card__text { color: var(--c-grey-700); margin: 0; flex: 1; }
.card__link {
  margin-top: 12px;
  font-weight: 700;
  font-size: .9rem;
  color: var(--c-dark);
}
.card__link:hover { color: var(--c-red); }

/* Variantes accent */
.card--accent-green .card__icon { background: rgba(46,138,85,.12); color: var(--c-green); }
.card--accent-blue  .card__icon { background: rgba(24,115,191,.12); color: var(--c-blue); }
.card--accent-red   .card__icon { background: rgba(212,32,42,.12);  color: var(--c-red); }
.card--accent-dark  .card__icon { background: rgba(26,26,26,.08);   color: var(--c-dark); }

.card--accent-green::before, .card--accent-blue::before,
.card--accent-red::before,   .card--accent-dark::before {
  content: ""; position: absolute; left: 24px; right: 24px; bottom: 0;
  height: 3px; border-radius: 3px;
  transform: scaleX(.2); transform-origin: left;
  transition: transform .35s ease;
}
.card--accent-green::before { background: var(--c-green); }
.card--accent-blue::before  { background: var(--c-blue); }
.card--accent-red::before   { background: var(--c-red); }
.card--accent-dark::before  { background: var(--c-dark); }
.card:hover::before { transform: scaleX(1); }

/* Cartes mini (rénovation détail) */
.mini-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--c-green);
  transition: transform .2s ease, box-shadow .25s ease;
}
.mini-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.mini-card h3 { font-size: 1.1rem; margin-bottom: 6px; }
.mini-card p  { color: var(--c-grey-700); margin: 0; }

/* ---------- 8. SHOWCASE SALLE DE BAINS ---------- */
.showcase__grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 56px;
  align-items: center;
}
.showcase__content .section__title { text-align: left; }

.bullets { margin: 18px 0 26px; }
.bullets li {
  position: relative;
  padding: 8px 0 8px 30px;
  border-bottom: 1px dashed var(--c-grey-200);
  color: var(--c-grey-900);
}
.bullets li:last-child { border-bottom: 0; }
.bullets li::before {
  content: "";
  position: absolute; left: 0; top: 14px;
  width: 18px; height: 18px;
  background: var(--c-green);
  -webkit-mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M9 16.2 4.8 12l-1.4 1.4L9 19l12-12-1.4-1.4z' fill='white'/></svg>") center/contain no-repeat;
          mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M9 16.2 4.8 12l-1.4 1.4L9 19l12-12-1.4-1.4z' fill='white'/></svg>") center/contain no-repeat;
}

.showcase__gallery {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  grid-template-rows: repeat(3, 1fr);
  gap: 14px;
  height: 580px;
}
.showcase__gallery img {
  width: 100%; height: 100%;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: transform .4s ease;
  min-height: 0;
}
.showcase__gallery img:hover { transform: scale(1.02); }
/* Première image : grand visuel à gauche, occupe les 3 lignes */
.showcase__gallery img:nth-child(1) { grid-row: 1 / 4; }

/* ---------- 9. CLIMATISATION & CHAUFFAGE ---------- */
.climate__grid, .heating__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.climate__media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4/3;
}
.climate__media > img {
  width: 100%; height: 100%; object-fit: cover;
}
.climate__media-sub {
  position: absolute;
  right: -18px; bottom: -18px;
  width: 44%;
  border-radius: var(--radius);
  overflow: hidden;
  border: 6px solid #fff;
  box-shadow: var(--shadow);
}
.climate__media-sub img {
  width: 100%; height: 100%; object-fit: cover;
  aspect-ratio: 4/3;
}

.features-list { margin: 18px 0 26px; display: grid; gap: 14px; }
.features-list li {
  background: #fff;
  border: 1px solid var(--c-grey-200);
  border-left: 4px solid var(--c-blue);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 12px;
  align-items: baseline;
}
.features-list li strong { font-family: var(--ff-head); color: var(--c-dark); }
.features-list li span { color: var(--c-grey-700); }

.heating__media img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4/3;
  object-fit: cover;
}

/* Encadré "Vous êtes professionnel ?" */
.heating__note {
  background: #fff;
  border-left: 4px solid var(--c-red);
  border-radius: 10px;
  padding: 14px 18px;
  margin: 0 0 24px;
  font-size: .96rem;
  color: var(--c-grey-700);
  box-shadow: var(--shadow-sm);
}
.heating__note strong { color: var(--c-dark); display: block; margin-bottom: 2px; }

.checks {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 24px;
  margin: 22px 0 28px;
}
.check {
  display: inline-flex; align-items: center; gap: 12px;
  font-weight: 600;
}
.check__bullet {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--c-red);
  position: relative; flex-shrink: 0;
}
.check__bullet::after {
  content: "";
  position: absolute; left: 6px; top: 5px;
  width: 10px; height: 6px;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(-45deg);
}

/* ---------- 10. TIMELINE / MÉTHODE ---------- */
.timeline {
  list-style: none; padding: 0; margin: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
  counter-reset: step;
}
.timeline::before {
  content: "";
  position: absolute; left: 4%; right: 4%; top: 30px;
  height: 2px;
  background: linear-gradient(90deg, var(--c-green), var(--c-blue), var(--c-red));
  border-radius: 2px;
  opacity: .35;
  z-index: 0;
}
.timeline__step {
  background: #fff;
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  text-align: center;
  position: relative;
  z-index: 1;
}
.timeline__num {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--c-dark);
  color: #fff;
  font-family: var(--ff-head);
  font-size: 1.4rem; font-weight: 800;
  display: inline-flex; align-items: center; justify-content: center;
  margin: -52px auto 14px;
  border: 4px solid #fff;
  box-shadow: var(--shadow);
}
.timeline__step h3 { font-size: 1.05rem; margin-bottom: 6px; }
.timeline__step p  { color: var(--c-grey-700); margin: 0; font-size: .95rem; }

/* ---------- 11. GALERIE RÉALISATIONS ---------- */
.gallery__filters {
  display: flex; flex-wrap: wrap; gap: 10px;
  justify-content: center;
  margin-bottom: 32px;
}
.filter {
  font-family: var(--ff-head); font-weight: 600;
  font-size: .9rem;
  padding: 10px 20px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--c-grey-300);
  color: var(--c-grey-900);
  transition: all .2s ease;
}
.filter:hover { border-color: var(--c-dark); }
.filter.is-active {
  background: var(--c-dark); color: #fff; border-color: var(--c-dark);
}

.gallery__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.tile {
  margin: 0;
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/5;
  background: var(--c-grey-200);
  box-shadow: var(--shadow-sm);
  cursor: zoom-in;
}
.tile img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .55s ease, filter .35s ease;
}
.tile:hover img { transform: scale(1.06); }
.tile figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 18px 16px 14px;
  background: linear-gradient(180deg, transparent 0%, rgba(0,0,0,.78) 100%);
  color: #fff;
  font-family: var(--ff-head);
  font-weight: 600;
  font-size: .98rem;
  transform: translateY(8px);
  opacity: 0;
  transition: transform .35s ease, opacity .35s ease;
}
.tile:hover figcaption { transform: translateY(0); opacity: 1; }
.tile.is-hidden { display: none; }
.tile:focus-visible {
  outline: 3px solid var(--c-blue);
  outline-offset: 3px;
}

/* ---------- 11b. LIGHTBOX (zoom plein écran) ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(10, 10, 10, .94);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  transition: opacity .25s ease;
  padding: 24px;
}
.lightbox.is-open {
  display: flex;
  opacity: 1;
  animation: lightbox-fade-in .25s ease;
}
@keyframes lightbox-fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.lightbox__figure {
  margin: 0;
  max-width: 92vw;
  max-height: 86vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  cursor: zoom-out;
}
.lightbox__img {
  max-width: 92vw;
  max-height: 78vh;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: 10px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, .55);
  background: #1a1a1a;
  display: block;
  animation: lightbox-zoom-in .3s ease;
}
@keyframes lightbox-zoom-in {
  from { transform: scale(.94); opacity: 0; }
  to   { transform: scale(1); opacity: 1; }
}

.lightbox__caption {
  color: #f3f3f3;
  font-family: var(--ff-head);
  font-weight: 600;
  font-size: 1rem;
  text-align: center;
  max-width: 80vw;
  margin: 0;
  text-shadow: 0 1px 3px rgba(0,0,0,.5);
}

.lightbox__close,
.lightbox__nav {
  position: absolute;
  background: rgba(255, 255, 255, .12);
  color: #fff;
  border: 0;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .2s ease, transform .2s ease;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  font-family: var(--ff-head);
  line-height: 1;
}
.lightbox__close:hover,
.lightbox__nav:hover {
  background: rgba(255, 255, 255, .25);
  transform: scale(1.08);
}
.lightbox__close:focus-visible,
.lightbox__nav:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 3px;
}

.lightbox__close {
  top: 20px;
  right: 20px;
  width: 46px;
  height: 46px;
  font-size: 28px;
}

.lightbox__nav {
  top: 50%;
  transform: translateY(-50%);
  width: 52px;
  height: 52px;
  font-size: 32px;
}
.lightbox__nav:hover {
  transform: translateY(-50%) scale(1.08);
}
.lightbox__nav--prev { left: 20px; }
.lightbox__nav--next { right: 20px; }
.lightbox__nav[hidden] { display: none; }

.lightbox__counter {
  position: absolute;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, .7);
  font-family: var(--ff-head);
  font-size: .9rem;
  font-weight: 600;
  background: rgba(0, 0, 0, .35);
  padding: 4px 12px;
  border-radius: 999px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.lightbox__counter:empty { display: none; }

/* Empêche le scroll du body quand la lightbox est ouverte */
body.lightbox-open {
  overflow: hidden;
}

/* Responsive : boutons plus petits sur mobile */
@media (max-width: 540px) {
  .lightbox__close { top: 12px; right: 12px; width: 40px; height: 40px; font-size: 24px; }
  .lightbox__nav  { width: 44px; height: 44px; font-size: 28px; }
  .lightbox__nav--prev { left: 10px; }
  .lightbox__nav--next { right: 10px; }
  .lightbox__counter { bottom: 14px; font-size: .82rem; }
}

/* ---------- 12. AVIS CLIENTS ---------- */
.review {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px 26px;
  box-shadow: var(--shadow-sm);
  border-top: 4px solid var(--c-red);
  display: flex; flex-direction: column; gap: 12px;
  transition: transform .2s ease, box-shadow .2s ease;
}
.review:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.review__stars { color: #f5a623; font-size: 1.2rem; letter-spacing: 2px; }
.review__text {
  margin: 0;
  font-size: 1.02rem;
  color: var(--c-grey-900);
  font-style: italic;
}
.review__author {
  font-weight: 700;
  color: var(--c-dark);
  font-family: var(--ff-head);
  font-size: .92rem;
}

/* ---------- 13. CONTACT / FORMULAIRE ---------- */
.contact {
  background: linear-gradient(135deg, #1a1a1a 0%, #2a1416 60%, #5a1118 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.contact::before {
  content: "";
  position: absolute; right: -120px; top: -120px;
  width: 360px; height: 360px;
  background: radial-gradient(circle, rgba(212,32,42,.35), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 56px;
  align-items: stretch;
  position: relative;
  z-index: 1;
}
.contact__intro .section__header { text-align: left; margin: 0 0 24px; }
.contact__info { margin: 22px 0; display: grid; gap: 14px; }
.contact__info li {
  display: flex; align-items: center; gap: 12px;
  font-size: 1.02rem;
}
.contact__ico {
  width: 38px; height: 38px;
  border-radius: 10px;
  background: rgba(255,255,255,.08);
  color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.contact__info a { color: #fff; font-weight: 600; }
.contact__info a:hover { color: var(--c-red); }
.contact__note {
  margin-top: 14px;
  font-size: .92rem;
  color: rgba(255,255,255,.7);
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 14px;
}

.form {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-lg);
  color: var(--c-grey-900);
}
.form__title {
  font-size: 1.35rem;
  margin-bottom: 18px;
}
.form__row { margin-bottom: 14px; display: flex; flex-direction: column; gap: 6px; }
.form__row label {
  font-family: var(--ff-head);
  font-weight: 600;
  font-size: .88rem;
  color: var(--c-dark);
}
.form input, .form select, .form textarea {
  font-family: var(--ff-body);
  font-size: 1rem;
  padding: 12px 14px;
  border: 1.5px solid var(--c-grey-300);
  border-radius: 10px;
  background: #fff;
  color: var(--c-grey-900);
  transition: border-color .2s ease, box-shadow .2s ease;
  width: 100%;
}
.form input:focus, .form select:focus, .form textarea:focus {
  outline: none;
  border-color: var(--c-red);
  box-shadow: 0 0 0 3px rgba(212,32,42,.12);
}
.form textarea { resize: vertical; }
.form__feedback {
  margin: 12px 0 0;
  font-weight: 600;
  font-size: .92rem;
  color: var(--c-green);
  min-height: 1em;
}
.form__feedback.is-error { color: var(--c-red); }
.form__legal {
  margin: 10px 0 0;
  font-size: .8rem;
  color: var(--c-grey-500);
}

/* ---------- 14. FOOTER ---------- */
.footer { background: #0f0f0f; color: #cfcfcf; padding-top: 56px; }
.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 36px;
  padding-bottom: 28px;
}
.footer__logo-wrap {
  display: inline-block;
  background: #fff;
  border-radius: 12px;
  padding: 12px 16px;
  margin-bottom: 14px;
  box-shadow: 0 4px 18px rgba(0,0,0,.25);
  max-width: 220px;
}
.footer__logo {
  height: auto;
  width: 100%;
  max-width: 190px;
  display: block;
}
.footer__tagline {
  font-family: var(--ff-head);
  font-style: italic;
  color: #f3f3f3;
  font-size: 1.02rem;
}
.footer h4 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 14px;
  letter-spacing: .2px;
}
.footer__col ul li { padding: 5px 0; font-size: .94rem; }
.footer__col a { color: #cfcfcf; transition: color .2s ease; }
.footer__col a:hover { color: var(--c-red); }

/* Signature Geoclic Suite (concepteur du site)
   Bandeau pleine largeur sous les colonnes du footer */
.footer__signature-wrap {
  padding-top: 8px;
  padding-bottom: 18px;
}
.footer__signature {
  display: block;
  width: 100%;
  border-radius: 12px;
  overflow: hidden;
  transition: transform .25s ease, box-shadow .25s ease;
}
.footer__signature picture,
.footer__signature img {
  width: 100%;
  height: auto;
  display: block;
}
.footer__signature:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(0, 220, 130, .15);
}

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 18px 0;
  font-size: .85rem;
  color: #8a8a8a;
}
.footer__bottom-inner {
  display: flex; justify-content: space-between; align-items: center;
  gap: 16px; flex-wrap: wrap;
}
.footer__bottom ul { display: flex; gap: 20px; }
.footer__bottom a:hover { color: #fff; }

/* ---------- 15. BOUTON FLOTTANT ---------- */
.floating-call {
  position: fixed;
  right: 18px; bottom: 18px;
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--c-red);
  color: #fff;
  display: none;
  align-items: center; justify-content: center;
  box-shadow: 0 10px 24px rgba(212,32,42,.45);
  z-index: 60;
  animation: pulse 2.4s infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 10px 24px rgba(212,32,42,.45), 0 0 0 0 rgba(212,32,42,.5); }
  50%      { box-shadow: 0 10px 24px rgba(212,32,42,.45), 0 0 0 14px rgba(212,32,42,0); }
}

/* ---------- 16. ANIMATIONS / HELPERS ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

/* ---------- 17. RESPONSIVE ---------- */
@media (max-width: 1080px) {
  .cards--4 { grid-template-columns: repeat(2, 1fr); }
  .gallery__grid { grid-template-columns: repeat(3, 1fr); }
  .timeline { grid-template-columns: repeat(2, 1fr); row-gap: 56px; }
  .timeline::before { display: none; }
  .features-list li { grid-template-columns: 180px 1fr; }

}

@media (max-width: 880px) {
  .hero { padding: 0 0 56px; }
  .hero__banner { margin-bottom: 36px; }
  .hero__banner img { max-height: none; }

  .showcase__grid,
  .climate__grid,
  .heating__grid,
  .contact__grid { grid-template-columns: 1fr; gap: 36px; }

  /* Sur tablette/mobile : grille 2x2 simple, plus de span */
  .showcase__gallery {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    height: 460px;
  }
  .showcase__gallery img:nth-child(1) { grid-row: auto; }

  .section { padding: 64px 0; }
  .cards--3 { grid-template-columns: 1fr; }

  .gallery__grid { grid-template-columns: repeat(2, 1fr); }
  .features-list li { grid-template-columns: 1fr; gap: 4px; }

  .topbar__item--hide-sm { display: none; }
  .topbar__item--right { display: none; }

  /* Menu mobile */
  .header__burger { display: inline-flex; }
  .nav {
    position: fixed;
    /* longhand au lieu de inset (compat Android Chrome ancien) */
    top: calc(var(--header-h) + var(--topbar-h));
    left: 0;
    right: 0;
    bottom: 0;
    /* Hauteur explicite avec dvh : prend en compte la barre d'URL Android Chrome
       (vh classique reste comme fallback pour navigateurs anciens) */
    height: calc(100vh - var(--header-h) - var(--topbar-h));
    height: calc(100dvh - var(--header-h) - var(--topbar-h));
    max-height: calc(100vh - var(--header-h) - var(--topbar-h));
    max-height: calc(100dvh - var(--header-h) - var(--topbar-h));
    width: 100%;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    padding: 24px 22px 32px;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: transform .25s ease, opacity .25s ease;
    border-top: 1px solid var(--c-grey-200);
    box-shadow: var(--shadow);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
  }
  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav__list {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    margin-bottom: 18px;
  }
  .nav__list a {
    padding: 14px 12px;
    border-radius: 10px;
    border-bottom: 1px solid var(--c-grey-200);
  }
  .nav__list li:last-child a { border-bottom: 0; }
  .nav__cta { margin-left: 0; align-self: stretch; text-align: center; }

  .floating-call { display: inline-flex; }
}

@media (max-width: 880px) {
  /* Header plus compact sur mobile : on récupère ~26 px de hauteur */
  :root { --header-h: 60px; }
  .header__logo img { height: 44px; }
}

@media (max-width: 540px) {
  :root { --header-h: 56px; }
  .header__logo img { height: 40px; }
  .container { padding: 0 18px; }
  .cards--4 { grid-template-columns: 1fr; }
  .gallery__grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .timeline { grid-template-columns: 1fr; }
  .checks { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .footer__signature { max-width: 320px; margin: 0 auto; }
  .form { padding: 24px; }
  .hero__buttons .btn { flex: 1 1 auto; justify-content: center; }
  .showcase__gallery { height: 360px; }
}

/* Print */
@media print {
  .header, .topbar, .floating-call, .gallery__filters, .form { display: none; }
  body { color: #000; }
  .section { padding: 20px 0; }
}